2005 Town and Country P0039. Killing me

ANDREWMILICH

MEMBER
2005 CHRYSLER TOWN AND COUNTRY
6 CYL
2WD
AUTOMATIC
110,000 MILES

I have a 2005 Town and Country Chrysler. Error code p0039 Here is what I have done so far to clear it

Replaced the 02 up stream sensor (OEM)
Replaced the PCM (dealer said it was bad. Hard to believe since the I did replace it and flashed it to latest software. Light still on)
Check for shorted wires. Fixed a couple
Changed the fuel pump (still has a little hesitation when accelerating)
Checked for vacuum leak. None
checked spark plugs. Fine

I am at a lose. Please help

whats next. Beside running it into a pole

3 Replies

HMAC300

MECHANIC
48,601 POSTS

There is no code 39 in our manual but there is a 38 i'm sending instructions on how to test the system by hand. Hope they come outok.

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Friday, August 19th, 2011 AT 1:21 AM

ANDREWMILICH

MEMBER
3 POSTS

I meant P0032 sorry> the deal gave me the above info also. Have read the ohms and watt ratings. Nothing solved. Could it be a vacuum leak. And how can I test again. From home

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Friday, August 19th, 2011 AT 1:30 AM

HMAC300

MECHANIC
48,601 POSTS

This is about the only thing you can do at home is to check resistance of O2 sensor. Otherwise you need a pro type scanner to do the correct thing. With this problem this vehicle shold be road tested with the scanner attached to try to find the cause of the problem. You could check ohms between connections to see if something is bad and look for bare wires as well. Also clean your ground battery to engine, battery to body and pcm to ground. The grounds for the O2 sensors are near the top of starter and around starter. Clean those as they may be corroded and not getting good ground.

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